# Kalshi's value hinges on a Supreme Court bet > A new report values the prediction market startup at up to $42.1 billion, but a looming legal case could upend everything. - Title: Kalshi's value hinges on a Supreme Court bet · Fortune - Summary: A new report values the prediction market startup at up to $42.1 billion, but a looming legal case could upend everything. PitchBook values prediction market… - Keywords: kalshi, prediction markets, polymarket, supreme court, sports betting, valuation, pitchbook, Kalshi's, value, hinges, Supreme, Court - Source: Fortune — https://fortune.com/2026/09/24/how-much-is-kalshi-really-worth-a-detailed-report-says-as-much-as-42-billion-if-everything-goes-right - Author: Jeff John Roberts - Read time: 2 min - Topics: kalshi, prediction markets, polymarket, supreme court, sports betting, valuation, pitchbook ## Prediction markets boom, valuations soar Kalshi raised one billion dollars in May at a twenty-two billion dollar valuation. The prediction market industry exploded in popularity in two thousand twenty-four, with Kalshi and Polymarket leading the field. ## PitchBook's three-scenario valuation Research firm PitchBook values Kalshi at thirty point four billion dollars based on expected two thousand twenty-eight adjusted earnings. The report forecasts a bear case of twenty-two point eight billion dollars and a bullish scenario of forty-two point one billion dollars. ## Kalshi's competitive edge over Polymarket Analyst Franco Granda says Kalshi holds an enviable position despite Polymarket's early lead. Polymarket spends considerably more on promotions and uses a more cautious revenue strategy, while the industry has become a two-horse race. > Third parties will pick up crumbs here and there but the window of opportunity for people to get in has passed. ## How prediction markets differ from sports books Prediction market customers bet against each other, not the house, making sites like Kalshi more profitable than traditional sports books. They also enjoy a regulatory advantage: federal oversight by the Commodity Futures Trading Commission rather than state licensing. ## Sports betting is the legal weak point Kalshi's legal case is strong for elections and entertainment but weak for sports. States and Indian tribes are suing Kalshi for allegedly offering unlicensed sports gambling. Sports and exotics account for eighty-two point four percent of event fees when combined. ## Supreme Court case looms next year Contradictory rulings from the third Circuit and ninth Circuit appeals courts have created a circuit split, making the case ripe for the Supreme Court, which is widely expected to hear it next year. Courts have mostly ruled against Kalshi so far. ## The financial impact of losing sports betting PitchBook estimates a twenty-five percent reduction in sports and exotics gross fees would remove six hundred forty-two million dollars from the two thousand twenty-six forecast and one point four billion dollars from two thousand thirty. ## Granda's adaptation theory versus legal reality Granda believes Kalshi could quickly adapt by adopting a state licensing model if the Supreme Court rules against it. Legal experts told Fortune the company has angered state lawmakers and would struggle to reconstruct its business model. ## Perpetual futures offer limited offset PitchBook forecasts perpetual futures, the most promising non-sports wager, will generate fifty point seven million dollars in net transaction revenue in two thousand twenty-six and two hundred seventy-five point seven million dollars in two thousand thirty. These figures are healthy but insufficient to offset total sports revenue loss. ## Key takeaway PitchBook values prediction market startup Kalshi at thirty point four billion dollars, but a Supreme Court case on sports betting legality could slash that valuation by billions.